Finding the Fourth Proportional to 3,770.50, 5,203.11 and 2,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,770.50 : 5,203.11 = 2,091.89 : x
2. Step 2: Convert to fraction form
   3,770.50/5,203.11 = 2,091.89/x
3. Step 3: Cross multiply
   3,770.50x = 5,203.11 × 2,091.89
4. Step 4: Simplify right side
   3,770.50x = 10,884,333.78
5. Step 5: Solve for x
   x = 10,884,333.78/3,770.50
6. Step 6: Final answer
   x = 2,886.71